1. plural of four; the numbers or things that are four in quantity
2. a position on hands and knees
Usage: typically used in the phrase ‘on all fours’
3. rowing crews of four people
Usage: rowing

Examples

• The children counted by fours: four, eight, twelve, sixteen.
• She got down on all fours to look under the bed.
• The baby crawled around on all fours.
• The rowing team practiced in their fours every morning.
• He rolled two fours with the dice.
• The cards were sorted into groups of fours.
• The dog walked on all fours across the yard.